Inspection Procedure

1. Check the radio's automatic station search function.
   1. Check the radio's automatic station search function by activating it.

      OK: The radio's automatic station search function works properly. 

NG: Go to step 2 

OK: REPLACE NAVIGATION RECEIVER ASSEMBLY  (See REMOVAL  )

1. Check optional components (sun-shade film, telephone antenna, etc.).
   1. Check if any optional components, such as a sunshade film or telephone antenna that may decrease reception capacity, are installed.

      OK: Optional components are installed. 

      NOTE: Do not remove any optional components installed by the customer without his or her consent.

NG: Go to step 3 

OK: REMOVE AND RECHECK OPTIONAL COMPONENTS (SEE NOTICE ABOVE) 

1. Preparation for check
   1. Remove the antenna plug from the navigation receiver assembly.
2. Check for noise
   1. Turn the ignition switch to ACC with the navigation receiver assembly connector connected.
   2. Turn the radio on and enter AM mode.
   3. Place a screwdriver, thin wire, or other metal object on the navigation receiver's antenna jack and check that noise can be heard from the speaker.

      OK: Noise occurs. 

      Fig 1: Locating Antenna Plug Of Navigation Receiver Assembly

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE  (See PROBLEM SYMPTOMS TABLE  )

OK: REPLACE AMPLIFIER ANTENNA ASSEMBLY AND ANTENNA CORD SUB-ASSEMBLY